John:
My research got so detailed that I realized that I needed to have the bowser filled from a tank at the farm that had been filled to the brim 36-48 hours earlier so that the high density (high SG) fuel settled to the bottom. I suppose refueling in Whitehorse in the winter would have also helped. Speaking of Whitehorse, that was the one place I just about got every promised pound of fuel in a GLEX. 44,900 out of 45,100 design load.
A engineer friend of mine in the C5 right after our changeover to JP8, told the fueler to "fill it up" after the pilots asked for something just short of a full load. When it was done, he was 15,000 pounds over the "flight manual full weight of fuel".
GF
I'll be at Singapore, if you are at the show.